China Electronics Technology Group Corporation
No.26 Research Institute
897.5MHz SAW Filter
24MHz Bandwidth
SIPAT Co., Ltd.
www.sipatsaw.com
Part Number: LBT89702
Typical Performance
Frequency Response
Passband Response
Type Performance
Type Performance
0.6142
0.1142
-0.3858
-0.8858
-1.3858
-1.8858
-2.3858
-2.8858
-3.3858
9.1142
-0.8858
-10.8858
-20.8858
-30.8858
-40.8858
-50.8858
-60.8858
-70.8858
-80.8858
-90.8858
850
860
870
880
890
900
910
920
930
940
750
800
850
900
Frequency(MHz)
950
1000
Frequency(MHz)
Horizontal: 50MHz/Div
Vertical: 10dB/Div
Horizontal: 10MHz/Div
Vertical: 0.5dB/Div
Group Delay Variation(885.5～909.5MHz)
Phase Linearity(885.5～909.5MHz)
Type Performance
Type Performance
50
40
30
20
10
0
25
20
15
10
5
X: 909.5
Y: 17.8
X: 885.5
Y: 17.11
X: 885.5
X: 909.5
Y: 2.159
Y: -3.428
0
-5
-10
-15
-20
-25
-30
-10
-20
-30
870
880
890
900
910
920
880
885
890
895
900
905
910
915
Frequency(MHz)
Frequency(MHz)
Horizontal: 10MHz/Div
Vertical: 10ns/Div
Horizontal: 5MHz/Div
Vertical: 5deg/Div
VSWR11(885.5～909.5MHz)
VSWR22(885.5～909.5MHz)
Type Performance (VSWR1)
Type Performance (VSWR2)
3
2.5
2
3
2.5
2
1.5
1.5
X: 885.5
Y: 1.184
X: 885.5
Y: 1.171
X: 909.5
Y: 1.123
X: 909.5
Y: 1.115
1
1
0.5
0.5
850
860
870
880
890
900
910
920
930
940
850
860
870
880
890
900
910
920
930
940
Frequency(MHz)
Frequency(MHz)
Part Number
Rev. Date
Ver.
LBT89702
2011-03-15
1.0
SIPAT Co., Ltd.
( CETC No.26 Research Institute )
#14 Nanping Huayuan Road,
Chongqing, China, 400060
Page 3/3
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